A federal judge criticized the Trump administration for removing information about sexually transmitted diseases while a Chicago doctor is fighting a chlamydia outbreak.

Sexually transmitted infections (STIs) are rising in Europe, especially gonorrhea and syphilis, among younger adults. But one STI has seen a huge drop in cases, and scientists don't know why.

Keir Starmer has taken an HIV test in public as a way to de-stigmatise testing in the UK. The prime minister sat alongside ...

Two sexually transmitted infections are spreading faster than ever. Our expert guide tells you everything you need to know, ...